Alfred john wale



ALFRED JOHN WALE, OF PHILADELPHIA, PENNSYLVANIA.

Letters .Patent No. 80,099, dated July 21, 1868.

IMPROVEMENT IN KNITTING-MAGHINE.

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TO .ALL WHOM IT MAY CONCERN:

Ba it known that I', ALF-RED JOHN Wann, of Philadelphia, Pennsylvania,havenvented an Improvement in Knittingdlachines; andI do hereby declarethe following to b'e a full, clear, and exact description of the same.

My invention consists of certain thread-guides and cams arranged andoperating as fully described here-` after, in connection with acircular-knitting machine, in which some of the needles project outwardbeyond the others, so that a supplementary thread or threads may beembedded in the fabric, to decrease its4 transverse elasticity andincrease its density. l ,v

In order to enable othersfsklled in the art to make and use myinvention, I will now proceed to describe its construction andoperation, reference being had to the accompanying drawing, whihh formsa. part of this specication, and in whichi Figure 1 is a sectionalelevation of my improved knitting-machine, and

Figure 2 a plan view. y

A A are parallel stationary plates, through which ex tends a hollowcylinder, d3, having at the outside vertical grooves or channels, a, forthe reception of needle-slides or bars, C, projections b on the latterextending between the opposite edges ot two annular cams or projections,D D', on the plates A". i

To some of the bars C are secured' needles c, and t'o others, needles c,the former being bent so as to be` almost in contact with the face of.the cylinder B, while the latter are bent outward, their upper endsbeing almost on a line with the outer edges of the bars C, to whichthey4 are attached, the two sets of needles alternating as shown-in thedrawing.

To standards E,l on the plate A, are secured three' thread-guides, H HII, and to intermediate standards, E', are secured thread-guides F.Within the cylinder, at equal distances apart, are arranged three cams dd d, each of whiehis attached to or forms'a part'of a rod, G, secured toone of the standards E. I

A rotary motion in the direction of its arrow is imparted to thecylinder B, the cams DD being of such a shape, and thcguide and cams dbeing soarranged that each needle will begin to rise above the upperedge of the cylinder as'it passes from beneath either of the said guidesF, and willdescend below the edge ofthe' cylinder immediately afterpassing from contact with the adjacent cam d. Y

These cams d aire of suoli -a l;orm that the needles c, as they arecarried'past cach cam, are bent outward, until they occupy ,the sameposition as the needles c', and with the said needles will thereforecatch the thread x, passing from'the guides H, and will carry thethreads in loops through the'loops of fabric on the shaiiks of theneedles in a manner too well known to those familiar withknitting-machinery to need particular description.

Asthe needles begin to rise, after passing from beneath the end of eachguide F, a thread, y, will bedirected by the said guide tol such a pointabove the edge of the cylinder that each needle c will rise at theinside, and each needle c at the outside of the said thread, which isthus laid betwecii the two sets of needles, and is, consequently,intel-locked with the-loops ofthe fabric, and is embedded in the latter,although it is not itself formed v in-to loops. A i

The introduction of a thread in this manner, while it imparts density tothe fabric, also limits its transverse elasticity. .'llie fabric thusapproximates, both in its appearance and character, to loom-made goods,and when l Vfulled and shorn, cannot be readily distinguished therefrom,and it hasthe advantage over woven fabrics, as regards economy, byreason of the, greater rapidity and facility with which it can bemanufactured.

Acylinder of any desired diameter, and carrying any gauge" of' needles,may be used to produce fabrics4 of any desired width andltextnre, whilethe number ot' thread-carriers or guides may bc increased or diminishedas required.

I vclaim as'niy invention, and desire to secure by Letters Patcnt- M Thecylinder B, with its'slides and its needles, some of which projectoutward beyond the others, in combination with supplementarythread-guides F and cams eZ, the wholebeing constructed, arrangedandoperating substantially as and for the purpose described.

In testimonyjvhereot', I have signed my-nam'e to this specification inthe presence of two subscribing witnesses.

i AFFRED JOHN WALE.

Witnesses:

JOHN WHi'rn, C. B. PRICE.

